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freeze classes/modules; ref #3340

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2016-12-12 01:05:07 +09:00
parent 761562b65f
commit 1164463a7c
1 changed files with 6 additions and 0 deletions
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src/class.c
+6
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@@ -370,6 +370,12 @@ mrb_define_method_raw(mrb_state *mrb, struct RClass *c, mrb_sym mid, struct RPro
MRB_CLASS_ORIGIN(c);
h = c->mt;
if (MRB_FROZEN_P(c)) {
if (c->tt == MRB_TT_MODULE)
mrb_raise(mrb, E_RUNTIME_ERROR, "can't modify frozen module");
else
mrb_raise(mrb, E_RUNTIME_ERROR, "can't modify frozen class");
}
if (!h) h = c->mt = kh_init(mt, mrb);
k = kh_put(mt, mrb, h, mid);
kh_value(h, k) = p;